Bromodimethylsulfonium bromide, in combination with zinc chloride,
has been shown to be an excellent catalytic system for liquid-phase
Beckmann rearrangement of various ketoximes into the corresponding
amides/lactams in acetonitrile at reflux temperature with
good to excellent yields.
Beckmann rearrangement - ketoximes - amides - bromodimethylsulfonium bromide (BDMS)
- catalytic process - Lewis acids